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Related papers: SIMBA's view of the epsilon Eri disk

200 papers

We present Herschel Space Observatory photometric observations of the unique, long-period eclipsing binary star Epsilon Aurigae. Its extended spectral energy distribution is consistent with our previously published cool (550 K) dust disk…

Astrophysics of Galaxies · Physics 2015-06-04 D. W. Hoard , D. Ladjal , R. E. Stencel , S. B. Howell

We present ALMA mosaic observations at 1.3 mm (223 GHz) of the Fomalhaut system with a sensitivity of 14 $\mu$Jy/beam. These observations provide the first millimeter map of the continuum dust emission from the complete outer debris disk…

We present results from the earliest observations of DEBRIS, a Herschel Key Programme to conduct a volume- and flux-limited survey for debris discs in A-type through M-type stars. PACS images (from chop/nod or scan-mode observations) at 100…

After the early observations of the disrupted asteroid P/2016 G1 with the 10.4m Gran Telescopio Canarias (GTC), and the modeling of the dust ejecta, we have performed a follow-up observational campaign of this object using the Hubble Space…

Earth and Planetary Astrophysics · Physics 2017-12-06 F. Moreno , J. Licandro , M. Mutchler , A. Cabrera-Lavers , N. Pinilla-Alonso , F. J. Pozuelos

We present ALMA long-baseline observations toward the Class 0 protostar IRAS 16253-2429 (hereafter IRAS 16253) with a resolution down to 0.12" (~15 au). The 1.3 mm dust continuum emission has a deconvolved Gaussian size of 0.16" x 0. 07"…

Astrophysics of Galaxies · Physics 2019-01-30 Tien-Hao Hsieh , Naomi Hirano , Arnaud Belloche , Chin-Fei Lee , Yusuke Aso , Shih-Ping Lai

We study the dynamical origin of the structures observed in the scattered-light images of the resolved debris disk around HD 141569A. We explore the roles of radiation pressure from the central star, gas drag from the gas disk, and the…

In the generally accepted, but poorly documented model, silicate J-type C-stars are binary objects for which the silicate emission originates from a circumbinary or a circumcompanion disc. We aim at testing this hypothesis by a thorough…

Astrophysics · Physics 2009-11-13 P. Deroo , H. Van Winckel , T. Verhoelst , M. Min , M. Reyniers , L. B. F. M. Waters

We present mid-infrared nulling interferometric and direct imaging observations of the Herbig Ae star HD 100546 obtained with the Magellan I (Baade) 6.5 m telescope. The observations show resolved circumstellar emission at 10.3, 11.7, 12.5,…

Astrophysics · Physics 2009-11-10 W. M. Liu , P. M. Hinz , M. R. Meyer , E. E. Mamajek , W. F. Hoffmann , J. L. Hora

We present centimeter and millimeter observations of the NGC 2071 star-forming region performed with the VLA and CARMA. We detected counterparts at 3.6 cm and 3 mm for the previously known sources IRS 1, IRS 2, IRS 3, and VLA 1. All these…

Astrophysics of Galaxies · Physics 2015-06-03 C. Carrasco-Gonzalez , M. Osorio , G. Anglada , P. D'Alessio , L. F. Rodriguez , J. F. Gomez , J. M. Torrelles

Many questions remain regarding the properties of disks around massive prototstars. Here we present the observations of a high mass protostellar object including an elongated dust continuum structure perpendicular to the outflow.…

Astrophysics of Galaxies · Physics 2015-05-20 Cassandra Fallscheer , Henrik Beuther , Jürgen Sauter , Sebastian Wolf , Qizhou Zhang

We discuss the properties of several circumstellar debris disk systems imaged with the Hubble Space Telescope's Near Infrared Camera and Multi-Object Spectrometer in a survey of young stars with known far-IR excesses. These dusty disks…

The Beta Pictoris Moving Group is a nearby stellar association of young (12Myr) co-moving stars including the classical debris disk star beta Pictoris. Due to their proximity and youth they are excellent targets when searching for…

Earth and Planetary Astrophysics · Physics 2015-05-14 R. Nilsson , R. Liseau , A. Brandeker , G. Olofsson , C. Risacher , M. Fridlund , G. Pilbratt

We report on the first nulling interferometric observations with the Large Binocular Telescope Interferometer (LBTI), resolving the N' band (9.81 - 12.41 um) emission around the nearby main-sequence star eta Crv (F2V, 1-2 Gyr). The measured…

During their evolution, Asymptotic Giant Branch (AGB) stars experience a high mass-loss which leads to the formation of a Circumstellar Envelope (CSE) of dust and gas. The mass-loss process is the most important phenomenon during this…

Solar and Stellar Astrophysics · Physics 2015-05-14 D. Ladjal , K. Justtanont , M. A. T. Groenewegen , J. A. D. L. Blommaert , C. Waelkens , M. J. Barlow

This letter reports 12 novel spectroscopic detections of warm circumstellar dust orbiting polluted white dwarfs using JWST MIRI. The disks span two orders of magnitude in fractional infrared brightness and more than double the number of…

Earth and Planetary Astrophysics · Physics 2025-01-31 J. Farihi , K. Y. L. Su , C. Melis , S. J. Kenyon , A. Swan , S. Redfield , M. C. Wyatt , J. H. Debes

(Abridged) A numerical model of a circumstellar debris disk is developed and applied to observations of the circumstellar dust orbiting beta Pictoris. The model accounts for the rates at which dust is produced by collisions among unseen…

Earth and Planetary Astrophysics · Physics 2015-05-19 Joseph M. Hahn

While most of the known debris discs present cold dust at tens of AU, a few young systems exhibit hot dust analogous to the Zodiacal dust. $\eta$ Corvi is particularly interesting as it is old and it has both, with its hot dust…

Earth and Planetary Astrophysics · Physics 2017-01-25 S. Marino , M. C. Wyatt , O. Panic , L. Matra , G. M. Kennedy , A. Bonsor , Q. Kral , W. R. F Dent , G. Duchene , D. Wilner , C. M. Lisse , J. -F. Lestrade , B. Matthews

We resolved FU Ori at 29-37 GHz using the JVLA with $\sim$0$''$.07 resolution, and performed the complementary JVLA 8-10 GHz observations, the SMA 224 GHz and 272 GHz observations, and compared with archival ALMA 346 GHz observations to…

We analyze very deep IRAC and MIPS photometry of $\sim$ 12,500 members of the 14 Myr old Double Cluster, h and $\chi$ Persei, building upon on our earlier, shallower Spitzer studies (Currie et al. 2007a, 2008a). Numerous likely members show…

Solar and Stellar Astrophysics · Physics 2015-06-22 Ryan Cloutier , Thayne Currie , George Rieke , Scott J. Kenyon , Zoltan Balog , Ray Jayawardhana

Context. To date, more than a hundred debris disks have been spatially resolved. Among them, the young system HD 120326 stands out, displaying different disk substructures on both intermediate (30-150 au) and large (150-1000 au) scales.…